Huge New Spider Species Discovered in Mexican Cave ... Red Rules apply
Califorctenus cacachilensis is the width of a softball and represents a new genus of arachnids
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Califorctenus cacachilensis
San Diego Natural History Museum
Arachnophobes, go to your happy place and please click here. Researchers from the San Diego Natural History Museum along with other experts recently unveiled a new spider species found in Mexico that is roughly the size of a softball, reports Deborah Sullivan Brennan at the Los Angeles Times.
According to a blog post from the museum, in 2013 field entomologist Jim Berrian and a team of researchers found the spider while exploring the Sierra Cacachilas, a small mountain range in Baja California Sur in Mexico. Investigating a cave in the area, they noticed a giant exoskeleton hanging from the ceiling. Instead of running back to their hotel and hiding under the covers, they decided to return that night, since they identified the spider as belonging to a genus of arachnids that are often nocturnal. That night, in the darkened cave, the team got their first look at what is now known as Califorctenus cacachilensis, or the Sierra Cacachilas wandering spider. The official description of the new spider appears in the journal Zootaxa.
“When I saw these spiders for the first time, I was very impressed by their size,” Baja spider expert Maria Luisa Jimenez, a researcher at Centro de Investigaciones Biológicas del Noroeste, says in the blog post. “In all my experience over the years collecting spiders on the peninsula, I had never seen a spider this large. I suspected that something new was waiting to be described.”
The researchers searched the area, finding about two dozen specimens in a cave, an abandoned mine shaft and the remnants of a pit toilet. They collected eight samples for further study, Brennan reports.
The head and legs of the spider are coffee brown and the abdomen is yellow. Though it is fairly plain, Berrian describes it as striking. The body is about an inch long while the legs are about four inches across. According to the blog post, the arachnid belongs to same family as the Brazilian wandering spider—a notoriously deadly spider.
But Cacachilensis is so different from its dangerous cousin and other related species that the researchers put it in a different genus. While its fangs are visible and considering its size, the spider is surely intimidating, a bite from one is not fatal.
Finding a new species of spider isn’t such a huge deal—many are discovered each year—but Michael Wall, another member of the expedition, thinks this one is special. “The odds of discovering a new species are pretty high,” he tells Brennan. “But...generally, [most] new species discovered are itty-bitty things that people don’t pay attention to, so given the size of this spider, that was surprising.”
While Cacachilensis is pretty good sized, it’s nowhere near that world’s largest by leg span, Heteropoda maxima, the giant huntsman spider which lives in Laos. Its legs can grow as large as 1 foot and it also stands accused of spinning webs out of nightmares and feasting on children’s dreams.
Califorctenus cacachilensis
San Diego Natural History Museum
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by Jason Daley
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The purpose of this seed/article is to throw mud at the wall: to exchange and examine pertinent ideas, or alternatively, any old bullcrap that passes through your mind.
Therefore, Red Rules apply:
- Read or don't read the article. Whatever...
- Comment on the article... or on the weather... or anything else that takes your fancy... Stay on whatever topic makes you happy... or change topic at random. Be constructive... or destructive.
- Be polite... or rude.
- Whatever you want.
If you do not wish to be constrained by these rules, then just do whatever you like.
If you have any questions or comments about Red Rules or my application of them, feel free to totally pollute this seed by posting them here.
Big ugly spiders! Cool!!
Finally some RBR'sI can easily live with. Thanks Bob. I have one question. Should I use RBR's or RBRs?
"Red Rules".
When I first began posting Red Rules, many years ago, I put them in a red box. I always called them Red Rules, but others apparently thought the box was very, very important, so they called them "Red Box Rules".
The box disappeared long ago, so the term "Red Box Rules" is... silly.
"Red Rules"!
Well, that makes sense. I was just little curious since the popular consensus is to write them as RBR and since there are more than one, what do you think, RBR's or RBR. Although I agree with you since there is no box, I think I will start just saying "Red Rules". Sounds more authoritative, kind of like Mrs. Mutner's rules.
There’s no point in calling them anything. They're dead. Perrie killed them yesterday.
Hey Bob, can I put a song up? Let it flow. This might develop into an interesting conversation.
Sure.
Look at this rascal!!! Now that is some spider. How would you like to wake up one night with that fellow staring at you with all eight eyes?
Oh, no, no, no, they aren't dead. They can be useful at times when we already know the subject of an article will be a hot one with lots of emotion. Of course they have their qualities and they have their disadvantages. We only have to move to the middle, so to speak, in enforcing them. Leave a little room for the somewhat off topic content of a comment.
You know how an attorney doesn't always seem to have a point when he first starts questioning the person on the stand. Sometimes a comment is somewhat like that, not a direct comment or question, but somewhat open to other interpretations of what the underlying meaning is. And voila, all of a sudden it all becomes clear as to what he/she was leading up to in the end.
They are as far as I'm concerned.
And we shouldn't be talking about them here. Perrie has created a group, and everything should go there.
Oh, I just found that out after I had already posted these comments. So later - six